Adding Pinion Angle Shims - Tell Me If This Sounds Correct, Please

This is all explained very clearly in the MP suspension manual. For like 50 years now. lol
Well, you know I'm a little stoopid, right? LOL
I think I did a bad job of using the right words to explain my measurements. So I just raised the car back up with jack stands under the front and rear suspension and re-measured everything as it sits now with the 3 degree shims installed so that they dropped the pinion angle downward.
I made this drawing to hopefully show what I did better. Tell me if this makes sense and if it sounds like I'm in the ballpark. According to my gonkulations, if my pinion angle comes up 2.6 degrees under load, then that should net me close to 0 degrees under load, which would make the transmission centerline nd pinion centerline end up parallel to each other when under load, right?
I'm still learning everyday and am not too proud to admit when I'm wrong, or stoopid... or both.
Edit: I know I spelled "Plane" wrong. But I'm too lazy to correct my drawing here and too dumb to spell it right in the first place.
@DoctorDiff

Pinion-Angle-Measurements.jpg

Pinion-angles-under-load.jpg